Pipe.



M. RHEINAUER. PIPE. APPLIGATION FILED MAYM, 1909.`

948,550. Patented Feb. 8, 1910.

l y Y Nnnew. s. GRAHAM co4. Pxmo-uwoemwans Il ITED STATES t? AT1 FICE.

MORITZ RHEINAUER, OF NEW YORK, N. Y., ASSIGNOR T0 DANIEL RHEINAUER, OFNEW YORK, N. Y.

PIPE.

Specification of Letters Patent.

Patented Feb. 8, 1910.

To all whom it may concern:

Be it known that I, MORITZ RHEINAUER, a citizen of the United States,residing at Manhattan borough, city,county, and State of New York, haveinvented certain new and useful Improvements in Pipes, of which thefollowing is a clear, full, and exact description.

This invention relates to an interlocking device which is adapted tosecure the stem and mouth-piece of a tobacco-pipe together.

While my improved securing device may be applied to any pipe, in whichthe stem and mouth-piece are separably connected, it is especiallydesigned for meerschaum pipes, for reasons to be hereinafter explained.

I will now proceed to describe my invention, the novel features of whichI will finally claim, reference being had to the accompanying drawing,forming part hereof, wherein Figure 1 is a side elevation partly insection of a pipe embodying my improvement, showing the pipe andmouth-piece secured together; Fig. 2 is a perspective view on anenlarged scale of the lock portion of my improvement; Fig. 3 is anenlarged side elevation of the key portion of my improvement, partly insection; Fig. 4 is a crosssection of my improved locking mechanism takenon a line a-a in Fig. 1; the pipe stem being omitted; Fig. 5 is asimilar view taken on a line b-b in Fig. 1; Fig. 6 is an end view of thelock portion of my improve ment, looking from right in Fig. 1; Fig. 7 isa top plan detail view, showing the lock and key interlocked; Fig. 8 isa fragmentary top plan view of the key shown in a position to enter thelock; Fig. 9 is an enlarged end view, looking from the left in Fig. 6,of the key; and Fig. 10 is an enlarged cross-section taken on a line 0 0in Fig. 1.

Before describing the mechanical features of my invention I wish to callattention to the pipe itself. The pipe is an important feature of myinvention, and the material from which it is made; namely, meerschaum,is especially favored by my improved interlocking or securing device. Itis well known in the arts that meerschaum is formed by baking a certainclay and another element other osseous material.

mixed therewith, and that the said meerschaum is very brittle anddelicate. The usual manner of securing the pipe and mouth-piece togetheris by means of a threaded nib, on the mouth-piece, and a threadedopening in the stem of the pipe which is adapted to receive the saidthreaded nib. By the constant separation of the stem and mouth-piece thesaid threaded parts becomev loose and are easily broken, and notinfrequently the stem of the pipe. Consequently I have found themajority of meerschaum pipes are in the repair shop most of the time. Toproperly color the meerschaum it is absolutely impossible t0 employ anyof the base metals as a bushing for the threaded nib to engage, andconsequently the opening in the meerschaum stem has to be threaded,which renders the said stem very delicate. Furthermore, if a metal bushis employed the danger of causing the stem to crack is greatlyincreased, owing to the expansion of the said metal bush. The stem willnot color properly if a metal bush be used, as itburns the meerschaum,and in most cases produces ay greenish tint near the end of the stem. Itis to obviate the necessity of employing a metal bushing in the stem ofthe pipe that I have produced the securing device to be hereinafterdescribed.

I have found by experience that the securing means for the stem of ameerschaum pipe and the mouth-piece therefor, should be preferably ofbone or some osseous substance. A gold or silver connection could beused with some advantage' over base metals, an osseous substance beingpreferable as it is a poor conductor of heat and will not expand.

Referring to the drawing, 1 in Fig. 1, indicates the bowl of ameerschaum pipe and 2 the stem thereof, the bowl being provided with awell 3. To provide for the lock of my improved securing device, Icounterbore the stem 2 at 1, the said counterbore being in communicationwith the well 3 by a duct 5 for the usual purpose. lVithin thecounterbore l I glue, cement or otherwise secure the lock element of myimprovement, which comprises a bushing 6 made out of bone or The bushing6 is provided with peripheral notches 7 which aids the glue or cement tohold the bushing 6 securely in position.

By referring to Fig. 6 it will be seen that the bushing 6 is providedwith a central bore 8 which alines with the duct 5, the said bore beingalso in communication with a larger counterbore 9 in the bushing 6 (seeFigs. 1, 4, 5 and 6).

By referring to Fig. 2 it will be seen that the bushing 6 is severedthroughout the greater part of its length by angular slots 10-and 1l(see Fig. 6), which slots open into the counterbore 9. Adjacent thefront of the bushing a recess 12 is formed which extends from the slot10, the said recess having an angular end 12a (see Fig. l). Adjacent therear of the bushing 6 a recess 13 is formed, which also has angularends, the recess 13 extending from the slot 11 in a direction oppositeto the direction of the recess 12 (see Fig. 6).

As a coperating locking device I cement, or otherwise secure in thecounterbore 14, of the mouth-piece 15, a key consisting preferably ofbone, comprising a stem 16, provided with peripheral grooves 17 to aidthe cement to hold the stem in the mouthpiece. The stem 16 is carried bya head 18 which is adapted to contact a portion of the face 19 of themouth-piece 15 when the said shank is in position. The head 18 alsocarries a stem 2O upon which are mounted the locking barbs 21 and 22.The barbs 21 and 22 are adapted to enter the recesses 12 and 13 in thebushing 6 which will hereinafter appear. The stems 16 and 20 areprovided with a central duct 23, which alines with the duct 8 in thefront end of the bushing 6 (see Fig. l).

It will be seen in Fig. 1 that the end of the bushing 6 is somewhatremoved from the adjacent end of the pipe stem 2, in order that the head18 can completely enter the counterbore 4 in the stem 2 and contact theend of the bushing 6.

When the stem 2 of the pipe and mouthpiece 15 are locked together thebarbs 21 and 22 will lie within the recesses 12 and 13 respectively;therefore, the said parts cannot be separated by a longitudinal pull. Inorder to separate the parts the mouth-piece 15 will be turned in thedirection of the dotted arrow 24 (Fig. 7) until the parts contact thesides 25 and 26 of the slots 10 and 11 respectively, at which time thesaid mouthpiece can be pulled out, for the reason that the said barbswill slide out through the said recesses 12 and 13. To connect the partsthe mouth-piece 15 is turned to bring the barbs 21 and 22 in alinementwith the slots 10 and 11 (see Fig. 8) in the bushing 6, and While inthis position the barbs are slid into and along the slots 10 and 11until the head 18 contacts the bushing 6, at which time the mouth-piececan be turned as per the arrow 27 (Fig. 7) to cause the said barbs toenter the recesses 12 and 13.

It is quite obvious from the above description that I am able toeliminate any screwthreading, and that an air tight connection isprovided by the head 18 contacting the bushing 6. Moreover all strainsare kept from the stem'3 by reason of the said head contacting thebushing 6.

Fig. 10 illustrates the configuration of the stem 2 of the pipe, namelydiamond shape, the mouth-piece 15 being also "diamond shaped as can beseen in Fig. 1. In order to render the pipe and stem attractive it isnecessary to cause t-he apex 27 of the stem, and the apex 28 of themouth-piece to aline. My improved locking device is particularly welladapted for this purpose for the reason that when the barbs 21 and 22are seated in their respective recesses 12 and 13, the slots 10 and 11being vertically positioned, the apex 28 will aline, and will alwaysaline with the apex 27. To accomplish the above result, I place thebushing 6 in the stem 2 in such a. manner as to cause the apex 27 andslots 10 and 11 to come into vertical alinement, while the barbs 21 and22 are so positioned, relatively to the apex 28, as to cause the apex toaline with the apex 27 when the parts are interlocked.

Having now described my invention what I claim and desire to secure byLetters Patent is 1. A securing device adapted to releasably lock thestem of a meerschaum pipe and a mouthpiece therefor together, comprisinga hollow bushing made of bone within said stem and removed from the endthereof, whereby a recess in said stem is provided, a key carried bysaid stem, a head on said key adapted to contact one end of said bushingand fill up said recess, locking devices carried by said key, andlocking devices carried by said bushing adapted to interlock with thelocking devices on said rey.

2. A securing device adapted to releasably lock the stem of a meerschaumpipe and a mouth-piece therefor together, comprising a hollow bushingmade of bone within said stem and removed from the end thereof, wherebya recess in said stem is provided, said bushing being provided withslots, said bushing being also provided with recesses in communicationwith said slots, a hollow key carried by said mouth-piece, barbs carriedby said key adapted to pass through the slots in said bushin and toenter the recesses extending therefrom.

3. A securing device adapted to releasably lock the stem of a meerschaumpipe and a mouthpiece therefor together, comprising a hollow bushingwithin said stem,

said bushing being bifurcated throughout a 'portion of its length, saidbushing being Signed at New York city, N. Y., this 12 also provided withrecesses in coininunicziday of May 1909.

tion Wit-h said bifurcation a holloW ke carried bysaid mouth-piece), andbarbs ca MORITZ RHEINAUER' ried by said key, adapted to pass throughWitnesses: the bifurcation in said bushing and to enter ALFRED E.SELIGER, the recesses extending therefrom. EDWARD A. JARVIS.

